- Iodonium, (4-methylphenyl)[4-(2-methylpropyl)phenyl]-, hexafluorophosphate(1-)（344562-80-7）Tianjin Rad Chem Tech Co., LTD.
- Indometacin（53-86-1）Shanghai Wibson Biotechnology Co., Ltd.
- Isophthalic acid（121-91-5）Jilin Tianyun New Materials Co., Ltd
- Isoprinosine（36703-88-5）Jilin Tianyun New Materials Co., Ltd
- Ibuprofen（15687-27-1）Jilin Tianyun New Materials Co., Ltd
- Imidazole（288-32-4）Jilin Tianyun New Materials Co., Ltd
- IGF-1 LR3（946870-92-4）Shanghai Wibson Biotechnology Co., Ltd.
- Isotretinoin（4759-48-2）Zhonghe Fountain(Tianjin)Biotech Ltd.
- Isopropyl-beta-D-thiogalactopyranoside（367-93-1） Shanghai Scochem Technology Co., Ltd.
- Indazole-3-carboxylic acid（4498-67-3）Shandong Hanjiang Chemical Co., Ltd.
